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# frozen_string_literal: true
module BulkImports
class NetworkError < Error
TRACKER_COUNTER_KEY = 'bulk_imports/%{entity_id}/%{stage}/%{tracker_id}/network_error/%{error}'
ENTITY_COUNTER_KEY = 'bulk_imports/%{entity_id}/network_error/%{error}'
NO_SPACE_LEFT_EXCEPTION = Errno::ENOSPC
DECOMPRESSION_FAILURE_EXCEPTION = Zlib::Error
EXCEPTIONS_RETRY_DELAY = {
NO_SPACE_LEFT_EXCEPTION => 120,
DECOMPRESSION_FAILURE_EXCEPTION => 60
}.freeze
RETRIABLE_EXCEPTIONS = Gitlab::HTTP::HTTP_TIMEOUT_ERRORS + EXCEPTIONS_RETRY_DELAY.keys + [
EOFError, SocketError, OpenSSL::SSL::SSLError, OpenSSL::OpenSSLError,
Errno::ECONNRESET, Errno::ECONNREFUSED, Errno::EHOSTUNREACH, Errno::ENETUNREACH
].freeze
RETRIABLE_HTTP_CODES = [429].freeze
DEFAULT_RETRY_DELAY_SECONDS = 30
MAX_RETRIABLE_COUNT = 10
attr_reader :response
def initialize(message = nil, response: nil)
raise ArgumentError, 'message or response required' if message.blank? && response.blank?
super(message)
@response = response
end
def retriable?(object)
if retriable_exception? || retriable_http_code?
increment(object) <= MAX_RETRIABLE_COUNT
else
false
end
end
def retry_delay
if response&.code == 429
response.headers.fetch('Retry-After', DEFAULT_RETRY_DELAY_SECONDS).to_i
else
EXCEPTIONS_RETRY_DELAY[cause&.class] || DEFAULT_RETRY_DELAY_SECONDS
end.seconds
end
private
def retriable_exception?
RETRIABLE_EXCEPTIONS.include?(cause&.class)
end
def retriable_http_code?
RETRIABLE_HTTP_CODES.include?(response&.code)
end
def increment(object)
key = object.is_a?(BulkImports::Entity) ? entity_cache_key(object) : tracker_cache_key(object)
Gitlab::Cache::Import::Caching.increment(key)
end
def tracker_cache_key(tracker)
TRACKER_COUNTER_KEY % {
stage: tracker.stage,
tracker_id: tracker.id,
entity_id: tracker.entity.id,
error: cause.class.name
}
end
def entity_cache_key(entity)
ENTITY_COUNTER_KEY % {
import_id: entity.bulk_import_id,
entity_id: entity.id,
error: cause.class.name
}
end
end
end
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